Repeated outbreaks of European infectious diseases such as influenza, measles and smallpox ( to which they had no natural immunity ), combined with other effects of European contact, resulted in a forty to eighty percent aboriginal population decrease post-contact.

Repeated outbreaks of European infectious diseases such as influenza, measles and smallpox ( to which they had no natural immunity ), combined with other effects of European contact, resulted in a twenty-five percent to eighty percent Aboriginal population decrease post-contact.

Repeated outbreaks of European infectious diseases such as influenza, measles and smallpox ( to which they had no natural immunity ), combined with dispossession from European / Canadian settlements and repressive policies, resulted in a forty-to eighty-percent aboriginal population decrease after contact.

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